M22-PVT-K01

1. Overview

The Eaton M22-PVT-K01 is a complete emergency stop assembly from the M22 RMQ-Titan modular pushbutton platform — Eaton's (formerly Moeller/Klockner Moeller) industrial-grade 22.5mm IEC pushbutton family. The part number decodes precisely as: M22 = 22.5mm RMQ-Titan series; PV = mushroom-head (Pilz-Ventil / mushroom actuator); T = Turn/Twist-to-release (distinguishing it from M22-PV which is push-pull release); K01 = 1 NC contact block included. This is a complete factory assembly (not actuator-only) consisting of: one M22-PVT mushroom actuator, one M22-A mounting clamp/fixing adapter, and one M22-K01 contact element — all orderable under a single catalog number. The BVP suffix variant (catalog 132624) is the identical unit in a retail blister pack for hanging display.

2. User Sentiment

No significant forum discussions or subjective user reviews were found in the findings. The product is a standard industrial safety component purchased on specification, not typically reviewed in consumer-style channels. Multiple distributors globally (DigiKey, Mouser, Newark/Farnell, RS Components, Grainger, Wesco, Galco, and others) stock it as an active product. One secondary source (Artisan Technology Group) flagged a potential EOL status, but this is contradicted by active listings at major primary distributors — likely an outdated ATG classification. The M22 line is broadly noted for rugged design, with operators and contact blocks rated for over 5 million mechanical operations.

3. Real-World Applications

The M22-PVT-K01 is used in industrial machine control panels wherever a safety-rated emergency stop is required per IEC 60947-5-5 / ISO 13850. Typical applications include machine tool control panels, assembly line safety circuits, conveyor systems, and any machinery requiring a maintained-action STOP function with manual reset (operator must physically twist the mushroom to re-enable the circuit). The twist-to-release mechanism prevents accidental reset and is the most common E-stop release type in industrial automation. Available globally from 14+ distributors and sold in 10-pack quantities for OEM machine builders.

4. Technical Specifications

• Type: Emergency stop/emergency switching off pushbutton, non-illuminated, maintained action
• Series / Platform: Eaton M22 RMQ-Titan (Moeller series); also sold as Cutler-Hammer M22-PVT-K01
• Mounting hole: 22.5 mm (standard IEC panel cutout)
• Mushroom head diameter: 38 mm (per Eaton/RS Components datasheet; some distributor listings approximate as 40–45 mm)
• Head color: Red (RAL 3000); base/bezel: Silver (chromed front ring); yellow base plate on some configurations
• Release mechanism: Twist-to-release (turn-to-release); push to latch, rotate mushroom to reset
• Contact configuration: 1 NC (SPST-NC) — one normally closed contact block (M22-K01)
• Contact rating (AC): 6 A @ 230 V AC (some sources: 4 A @ 230 V AC — check specific contact block revision)
• Contact rating (DC): 3–5 A @ 24–250 V DC
• IP rating: IP67 and IP69K (dust-tight, waterproof, high-pressure wash-down)
• NEMA rating: NEMA 4X, 13 (also 1, 2, 3, 3R, 4, 12 per broader M22 family data)
• Operating temperature: -25°C to +70°C
• Mechanical life: >5 million operations
• Assembly contents: M22-PVT actuator + M22-A fixing/mounting adapter + M22-K01 contact element (complete device)
• Modular expansion: Up to 6 contact blocks can be added to the M22-PVT actuator; compatible blocks: M22-K01 (NC), M22-K10 (NO), M22-K11 (NO+NC)
• SmartWire-DT: Not compatible (standard hardwired only)
• UPC: 786685271927
• Dimensions (product): Height ~1.89 in (48 mm), Length/Depth ~1.38 in (35 mm)
• Weight: ~0.06 kg
• Certifications: CE, UL Listed, CSA, CCC, Bureau Veritas, Lloyd's Register

5. Ordering & Compatibility

M22-PVT-K01 is available from DigiKey (~$64 single unit, ~$54 at 10+), RS Components, Mouser, Newark/Farnell, Grainger, Galco, and many regional distributors. The BVP blister-pack variant (catalog 132624, EAN 4015081295692) is the same product in retail packaging (~561 CZK / ~640 MXN depending on market). Compatible accessories include additional M22-K01 (NC) or M22-K10 (NO) contact blocks snapped onto the same actuator shaft (up to 6 total). Related part numbers: M22-PVT (actuator only, no contact), M22-PVT-K10 (1NO), M22-PVT-K11 (1NO+1NC), M22-PVT-K02 (1NO+2NC). The M22-A mounting adapter is included in the K01 assembly. Product also sold under Klockner Moeller legacy branding (M22-PVT/K01 with slash notation).

6. Known Issues

No significant field defects or known issues reported across sources. One source (Artisan Technology Group) suggested potential EOL status, but this is not corroborated by major distributors (DigiKey, Mouser, Newark, RS all show active stock). Minor data-quality note: head diameter is cited as 38 mm in authoritative Eaton/RS datasheets but appears as 40 mm or 45 mm in some distributor catalog entries — the 38 mm figure from the RS Components Eaton datasheet PDF is considered authoritative. One distributor title (EW-CT) incorrectly described the release as "Pull-To-Release" — this conflicts with all other sources and the Eaton datasheet; the correct mechanism is twist/turn-to-release only. Contact rating discrepancy: 4A vs 6A at 230VAC across sources — likely a revision difference in the M22-K01 contact block; verify against current Eaton datasheet for exact rating.